Combination concrete-molding machine.



H WIEST.

COMBINATIGN GONGRETB MoLDING MACHINE.

APPLIOATION FILED JUNE 29, 1908.

Patented Nov. 2, 1909.

WITNESSES J. H. WIPS'I.1

COMBINATION CONCRETE MOLDING MACHINE.

AAPPLICATION FILED JUNE 29, 1908. 9399 1 1 8.

Patented Nov. 2, 1909.

3 SHEETS-SHEET 2.

A l/l//l/ A TTORNE Y.

J. H. WIEST.

CDMBINATION GONGRETE MOLDING MACHINE. APPLIOATION FILED JUNE 29. 190s.

939, l l 8 Patented Nov. 2, 1909.

3 SHEETS-SHEET 3.

' ATTORNEY.

UNITED STATES PATENT OFFICE.

JONAS H. WIIEST, 0F INDIANAPOLIS, INDIANA, ASSIGNOR TOv INDIANA CONCRETE ICH CO., OF INDIANAPOLIS, INDIANA, A CORPORATION 0F INDIANA.

COMBINATION CONORE'.lE-lllOl'alDINGrl MACHINE.

Specification of Letters Patent.

Patented Nov. 2, 1909.

exact description of the invention, reference.

being had to the accompanying drawings, and to the letters and gures of reference marked thereon, which form a part of this' specification.

This invention relates to machines and apparatus for forming plasticmaterial into a variety of shapes, and it has reference more particularly to a machine for molding concrete shingles, floor-tiling or blocks, paving blocks, etc.

The object of the invention is to provide apparatus whereby concrete may be expeditely molded in various shapes and in an .improved manner by the unskilled, and to provide apparatus of the above mentioned character that may be produced at much less cost than separate machines for molding different forms could be produced, a still further object being to provide ag combination machine that will be adapted to be used by the small producer and serve the purpose of a variety of machines.

The invention consists in a combination molding machine and apparatus comprising sectional interchangeable mold forms,a frame for supporting the forms, apparatus for separating the products from the forms, all of novel construction and arrangement; and, consisting further in the parts, and combina- .tions and arrangements of parts, as hereinafter particularly described and defined in the appended claims.

Referring to the drawings Figure 1 is a top plan View of the machine with its cover thrown back as when prepared to begin molding operations; Fig. 2, a front 'elevation of the machine with the product elevators intheir higher positions; Fig. 3, a side elevation of the'machine adjusted as in the preceding ligure; Fig. 4, a fragmentary top plan of the machine adjusted as in Fig. 1, but'vvith parts of the forms removed; Fig. 5, a fragmentary vertical sectional view on the linek A"A in Fig'. 4; Figs. 6 and 7, top plans of two partitional form parts for shaping shingles or blocks; Fig. 8, an elevation of the two form parts shown inthe two preceding gures connected together; Fig. 9, a fragmentary vertical sectional view at the plane of the line B-B in Fig. 2; Fig. 10, a fragmentary vertical sectional view on the line C-C in Fig. 1; Fig. 1l, a horizontal sectional view at the plane of the line D-D in Fig. 2 inverted; Fig. 12, a vertical sectional view of one of the productelevators taken on the plane of the line E-E in 4; Fig. 13 a top plan of the elevator; Fig. 14, a fragmentary vertical sectional view on the line F-F in Fig. 1; Fig. 15, a top pla-n of a mold form used in producing octagon'alpaving blocks; Fig. 16, a companion form shown in inverted position; Fig. 17, aseotional elevation of a mold form used in producing square or rectangular blocks; Fig. 18, a top plan of the Work ltable portion of the machine; Fig. 19, a perspective view of the mold form with which other mold forms are associated to produce different shapes of product; Fig. 20 a sectional detail of operating parts of the machine; F ig. 21, a top plan of one of the pallets used in theY machine; Fig. 22, a sectional view ofthe pallet on the line Gv'G in Fig. 21; and 23, a fragmentary vertical sectionalY view at the plane of the line C-.C in Fig. 1.

' Similar reference characters throV the various figures of the drawings inYA -cate corresponding elements or features of construction referred to` herein.

A practical embodiment of the invention comprises a stand having four legs 1, 2, 3, 4, composed preferably of angle-iron bars, the upper portions of the legs having braces 1', 2', 3', 4', secured thereto, a rectangular main frame 5 being secured to the braces on the tops of the legs. \A rectangular table frame 6 is secured on the top of the main frame,

vand a rectangular work table 7 is secured in the table frame, so that the table frame forms an upward extending rim around the edge of the work table. `A back plate 8 secured to the rear portions of the table framer and has hinges 9 secured thereto Vto which a cover l() is attached, the cover including a side flange 11 adapted to rest on the main frame 5 when the vcover is moved forward on its hinges so as to cover theyvork table when the machine is not in use. When .using the machine the cover is thrown back as shown, so as to be inverted and forms a tray wherein the tools may be conveniently out placed, a box 12 being provided for holding small articles. The main frame is provided with a staple 13 at the front thereof and the cover is provided at its free end with a hasp 14 to engage the staple so that the cover may be locked when the machine is not in use or while being shipped. The cover is provided with two props 15 and 16 each havin a slot 17 in one end thereof, the opposite en of each prop being connected by a pivot 18 to the cover, the legs 3 and 4 having projections 18 that are engaged by the slotted ends of the props when the cover is thrown back. lThe legs of the stand are connected at their lower portions by rails 19. y A main mold forni 20 is formed and it is provided with lugs 21 and 21' having screwbolts 22 and 22' formed thereonthat extend through holes 23 and 23' formed in the table 7, the bolts having nuts .24 'and 24 thereon whereby the mold form is secured removably on the top of the table. The form is rectangular, but may be madein other shapes and has other mold form parts associated therewith, in order to mold various shapes ofV product. In some cases, however, themold form 20 may be filled with the plastic material toform a paving slab'or block the full size of the form in plan. In order to adapt the machine for molding articles .of smaller sizes, a partitional form is provided which divides the space in the form 2O into two sections and comprises two T-shaped parts, one part having a stem 25 in the end of which is a groove 26 and rthe other part having a stem 25' on the end of which is a tongue27 to enter the groove 26, the stems being joined together at the middle of the space in the form 20 and resting on the table 7. One stem has a cross-arm 28 thereon and the other stem has a cross-arm 28' thereon, the cross-arms being alike and extending against opposite walls of the form 20. Each part of the partitional form has an angular vertical face29 and an angular face 29 at the junction of the arm with the stem of the art, the ends of the arm having angular aces 30 and 30', the arms and angular faces being adapted to shape theends of shingles or octagonal paving blocks. The parts are Y provided with securing bolts 31 and 31 on which are nuts 32 and 32 for securing the parts' on the-top of thetable, the latter hav.- ing bolt holes 33 and 33 thereinto receive they bolts. `With this arrangement of the forms two 'roofing shingles or two oblong aving blocks may be molded with their ends ormed each with three angles of octagons.

In order to remove the products from the lmold forms two elevators 34 and 34 are pro- -vided which correspond in lan to the contours of the walls of the orms above described, the elevators being arranged above the table 7 in the s aces in which the articles are molded, the evators being alike and -connected the rods of the other elevator.

having each a pair of guide-bars 35 and 35 on the under side thereof, and the table 7 has two pairs of guideways 36 and 36' and 37 and 37 in which the guide-bars operate vertically. The elevators may be variouslY shaped in plan other than above mentione The elevators are normally supported by adjusting-screws 38 and 38' and 39 and 39 mounted in the table 7 in whichare suitable holes 40 and 40 and 41 and 41', there being two screws for each elevator and adjustable vertically so as to support the elevator in different the top o the form 20 so as to govern the thickness of the product. The under side of each elevator has four ears 42 and 42 and' 43 and 43 for moving it and supporting it in its higher position, the ears passing through apertures 44, 44', 45, 45 46, 46',.47, 47 in the table 7 when the,V elevators are at their -lowermost positions. Each ear has a connecting rod suitably pivoted thereto, there being `four rods 48, 48', 49, 49', for one elevator and four rods 50, .50', 51, 51 for the other elevator.

The gearing for moving and controlling the elevators comprise two hangers 52 and 52 that are attached to the under side of the table 7, a main shaft 53 mounted in the hangers rotatively, two other hangers 54 and 54 attached also to the under side ofthe table and in which a shaft55 is mounted rotatively, the shaft 53 having two arms 56,

.56', and the shaft 55 having two arms 57, 57'

secured thereto to which are pivoted the connecting rods of one of the elevators, the shaft 53 having also two similar arms 58, 58', and the shaft 55 having also two similar arms 59, 59' secured thereto to which are pivotally The pivots by which the connecting rods are vpivoted to thearms and also to the ears of the elevators preferably comprise each a pin 6() extending through two of the parts and provided with a key 61 securing the pivot pin 1n one of the parts so as to be free to rotate in thepcompanion part as shown in Fig. 20, so that the connecting rods may be easily disconnected from the arms to remove the elevators so that other elevators may be sub- Vstltuted therefor if desired. rIhe shaft 53 and 65 that are sto ped by projections 66 1 and 66 on the main rame 5 when moved so as to bring the elevators to their higher posi,- tions, but it should be understood, however, that either one of the levers may be dispensed with if desired.

lanes relatively to the plane of` v-68 arranged at angles one to another so Athat .present case with three angular faces each form is providedthat comprises two parts,

`whio 5 'comprising a stem 82 having a tongue 84 to two efplial spaces for molding octagonal eaan's The uppermost face of each elevator may have any desired conguration, but for the purpose of manufacturing improved shingles one end of each elevator has a depressed surface 67 extending from shoulders 68 and sheet metal pallets may be placed 011 the elevators to mold shingles having thickened ends, the opposite end portion of each elevator having two recesses 69 and 69 and the body portion having two recesses 7 0 and 70 in the upper portions thereof, the ends 71 and 72 of the elevator being formed in the conforming to the octagonal contours but, of` course, the ends may be variously shaped otherwise; The middle portions of the elevator have relatively large notches 73 and 73 in the edges thereof to ali'ord clearance space for the hands of the operator to lift the pallets from the elevators.

A suitable number of 'pallets 74C are provided to be used with each machine, all the pallets being alike and formed of sheet metal, one end portion of each pallet being offset so` as to formy a depressed part 7 5 at the top thereof extending from shoulders 76 andj76 so that a shingle having a thickened end part can be formed thereon, the top of the pallet having depressions 77 and 77 and 78 and 7 8", the ends 79 and 80 being-in the present case shaped to conform to octagonal. contours, and,'of course, the ends may be otherwise shaped if desired. The middle portions of the pallet have Small notches 81 and 81 in the edges thereof. In some cases the pallets 'maybe used in inverted positions when it is desired to mold paving blocks thereon. f 7

, In order to adapt the machine for molding octagonal shapes of 4.blocks a partitional one part havinga stem 82- in the'end of 'is a gitoove 83, and the other part enter thegroove, one stem having a broad end 85, and the other stem having abroad end'85, one end ,having angular faces 86 and 86', and the other one havlng angular faces 87 and 87. One side of one part has a horizontal rib 88 and the other one a similar rib 88 and each broad end has a plate 89 secured thereto on which is a dowel 90 projecting downward into either notch 81 or 81 the parts being placed on the pallet so as to extend across .the middle portion thereof with one broad end a ainst the stems 25 and 25 and the other' road end against the o posite wall of the mold form 20, thus dividlng the space for a'shingle into iioor t ng or blocks as shown particu arly in Fig. 1. A horizontal rib form 91 is placed against the stem 25 and the crossarm -28 against the rib 88, and another rib form 91 is placed lagainst the inner side' ofthe form 20 and against the cross-arm 28 extending to the rib 88, so thatv a groove may be formed in the edge of` a paving block by the rib forms. It should be understood, however, that the forms may be so in the edges of all of the blocks. In the other space above described for molding a shingle, two filling blocks 92 and 92. are

inserted on the pallet and have each a suitable number of vertical slots 93 in the inner side thereof in which are inserted removable partitions 94,'so that square paving blocks may be molded, and a diagonal partition 95 is also inserted between'two of the other partitions so that triangular corner pieces may be molded. Various other shapes of forms,

of course, may be provided for.- changing tional forms having the stems 82 and 82" are placed on the allets if itis desired to mold octagonal b ocks, but are not used when lit is desired to mold shingles. The plastic material is then placed on the pallets andhaving been suitably'tamped'is struck off even with the topA of the form 20 and preferably troweled on theI top thereof.

The material when properly prepared will immediately set sutiiciently for removal and then the operating levers are moved rearward so as to cause the elevators to rise from the stationarymold-form or forms, after which the pallets with the products therein are lifted by hand from the elevators and carried away to suitable places to remain until the products have sulliciently hardened to bev removed from the pallets. In case the octagonal v blocks and the smaller square blocks are,

molded the forms described for their production are removed from the pallets after paving been elevated from the stationary orms.

is claime as new, is-

v1. A molding machine includin a table having guideways and also bolt-ho es there- 111, a main mold form on the `table havin a plurality of lugs secured rigidly thereto tat have bolts thereon extendlng through bolt main mold form in engagement-with two opposite sides thereof, bolts entering bolt-holes i holes and securing the mold form rigidly to 'the table, a partltional mold form in the opposite ends of the elevators.

2. A molding machine including a table, a main mold form secured rigidly on the table, a partitional mold form secured on 'the table and engaging opposite sides of the mainl mold form,- the partitional mold lorrnv having two cross-arms on opposite ends thereof engaging the opposite sides of the main mold form and extending to the other sides thereof, two elevators mounted to move Vertically in the main mold form at opposite sides of the partitional mold form and between the cross-arms thereof, means `for moving the elevators, pallets seated removably on the elevators, two filling blocks on one of the pallets and Yextending substanf tially to the cross-arms, one block being against the main mold form and the other block against the partitional -mold form', the blocks having slots therein, and partitions on said allet and extending into the slots in the bloc s.

3. A molding machine including a table, a'

operating shaft mounted rotatively under the table, and means connected with the shaft and also with the two elevators for raising the elevators and the allets and also the sectional partitional mo d form above the plane of the top of the main mold form.

4. A molding machine includin a table, a lmain mold form secured on the ta le, a partitional mold form secured on the table and engaging opposite sides of the main mold form and having a cross-arm engaging another side of the main mold form, two elevators mounted movably .within ythel main mold form at opposite sides of the partitional mold' form and havin each a pallet thereon, a sectional partitiona mold form on one of the pallets and engaging the secured partitional mold form and also the main mold form, a horizontal rib form on one side of the sectional partitional mold form, a horizontal, rib form extending against one side of the secured partitional mold form and the cross-arm, a horizontal rib form extending against the cross-arm and also against the main mold form, the rib lforms being joined together, and means for raising and supporting` the two elevators above the plane of the top of the main mold form.

5. A molding machine including a plurality of legs having each a brace attached to the top thereof, a main frame attached to the braces,a table-frame secured on the top of the main frame, a table secured in the tableframe and having a plurality of guideways therein, a main mold form secured on lthe table, apartitional mold form comprising two parts having each a stem and a crossarm, `the stems being joined together and the crossarms engaging opposite sides of the main mold form, bolts securing the two parts of the partitional mold form removably to the top of the table, two elevators mounted within the main mold form at opposite sides of the partitional mold form between the cross-arms and having each a plurality of guide-bars thereon extending movably through a plurality of the guideways, means for normally supporting the elevators adjustably in a l lane below thev tops of the mold forms, an means :tor rais- 4 ing and supportin the elevators above the plane of the tops o the mold forms.

6. A combination concrete molding machine comprising a main frame, a table mounted on the main frame, hangers attached to the under side of the table a main mold form secured to the top of the table, a fixed artitional mold form secured to the top ofp the table and engagino` opposite sides of the main mold form, two elevators mounted within the main mold form, each elevator having a pluralityof ears on the under side thereof provided each with a pivoted connecting-rod, a pair of shafts mounted rota- `tively in the han ers and connected operatively together an having arms thereon pivoted to the connecting-rods of the ears, a pallet mounted removably on one of the elevators and having a pair of filling blocks thereon having each avplurality of slots therein, one illing block engaging the main mold form and the other lling block engaging the partitional mold form, partitions on the pallet extendin into the slots of the filling blocks, and a pal et mounted removably on the other one of the elevators and having a sectional partitional mold form thereon en aging the main mold form and also the xed partitional mold form.

7. In a molding machine, the combination with a table, and gearin mounted under the table, of a main mold orm secured rigidly form at opposite sides of the partitional mold form, operating connections between the gearing and the elevators, pallets seated removably on the elevators, sectional mold forms on one of the pallets to coperate with the cross-arms for forming two octagonal blocks on the pallet, and sectional -mold forms on the other pallet cooperating with the main mold form and the artitional mold form and crossarms thereofto form a plurality of square blocks.

8. In a mo ding machine, the combination with a table, a main mold form secured on the table, and a pair of elevators mounted movably above the table in the main mold form, of a partitional mold formsecured on the table between the elevators and having cross-arms extending along opposite sides of the main mold. form at op osite ends of the elevators, allets on the e evators, and sectional mol forms on one of thepallets and comprising two lling blocks each having slots therein, one filling block engaging the main mold form and portions' of the crossarms and the other block engagin the partitional mold form and portions o the crossarms thereof, and partitional forms on the said pallet extending into the slots. ,l

9. Ina molding machine, the combination of a table havinga guideway therein, amold form secured immovably on the table, an elevator mounted movably in the mold lform and having a guide-bar on the underside thereof extending movably` into the guideway, gearing mounted under the table and connected with the elevator, and a pallet seated removably on the elevator and having two oppositel sides thereof extending later- .tional mold form 'seated removab ally beyond elevator.

10. In a molding machine, the combination with a table, a mold form on the table, and an elevator mounted movably in the mold form, of a pallet seated removably7 on the elevator and comprising a plate having a depression in its top at one end thereof anda plurality of depressions in otherportions thereof, the ,pallet extending laterally beyond two opposite sideportions of the elevator.

l1. In molding apparatus, the combination with a table, a mold form secured on the table, and gearing mounted under the table, of an elevator mounted movably above the table in the mold form and having a recess in each one oftwo opposite sides thereof, the elevatonbeing connected with the gearing, and a allet'seated removably on the top of the e evator and extending over the recessed portions thereof. y

12. In a molding machine, the combination with a table, a main mold form secured on the table, and an elevator mounted movably in the mold form, of a pallet seated removably on the elevator and having aV partiy thereon, said partitional mold form comprising two two opposite side portions of the parts joined together and extending to.opposite sides of the main moldform.

In'testimony whereof, I aiix my signature in presence of two witnesses, on the 26th day of June, 1908.

JONAS H. wIEsT. 

